Search online, you can find it!
In your glove box
A fuse box diagram helps the driver know which fuse goes to what car part. The diagram for a 1991 Ford Ranger is in the owners manual or on the inside fuse box cover.
No known web site.
It should be in the owners manual.
In the owners manual
In the owners manual or shop manual. Get one from MOTORLIT.COM
Your Nissan dealership can get one for you!
Often in the owners manual is where i found the one for my 1991 Crown vic. Hope you have your manual?
autozone.com has free online manuals
You can view the 2003 Ford Ranger OWNERS manual online at : www . motorcraft service . com ( no spaces ) Click on Owner Guides * for North America
YOU CAN FIND THE MANUAL FOR ALL FORD PRODUCTS AT THE FORD WEB SITE .